In the last two decades modal logic has undergone an explosive growth, to thepointthatacompletebibliographyofthisbranchoflogic,supposingthat someone were capable to compile it, would?ll itself a ponderous volume. What is impressive in the growth of modal logic has not been so much the quick accumulation of results but the richness of its thematic dev- opments. In the 1960s, when Kripke semantics gave new credibility to the logic of modalities? which was already known and appreciated in the Ancient and Medieval times? no one could (...) have foreseen that in a short time modal logic would become a lively source of ideas and methods for analytical philosophers,historians of philosophy,linguists, epistemologists and computer scientists. The aim which oriented the composition of this book was not to write a new manual of modal logic buttoo?ertoeveryreader,evenwithnospeci?cbackground in logic, a conceptually linear path in the labyrinth of the current panorama of modal logic. The notion which in our opinion looked suitable to work as a compass in this enterprise was the notion of multimodality, or, more speci?cally, the basic idea of grounding systems on languages admitting more than one primitive modal operator. (shrink)

Adamson argues that Marxism "teaches us how to interpret social and historical reality, and to relate that interpretation to our current political concerns.".

This book is an interdisciplinary exploration of the notion of childhood and its place in philosophical education. Childhood is not seen as a developmental state that needs to be overcome, but rather an existential state that constitutes a significant part of being human as well as the (forgotten) dimension of the world itself.

Tandis que la science descriptive des normes les traite comme faits sociaux et les expose du dehors, la science dogmatique des normes cherche à élaborer les normes positives en un système cohérent de normes. Elle part de la réalité des normes dans la culture, mais elle est pensée à Vintérieur du système de normes. Il s’agit ici non d’un point de vue de simple connaissance, mais d’un point de vue normatif. La science philosophique des normes, ou Éthique, cherche à se (...) situer au-dessus des normes valides pour les expliquer et les ramener à des principes fondamentaux : les valeurs morales foncières ne peuvent être fondées dans une réalité. (shrink)

En este texto el A. se propone mostrar que es posible emplear algunas técnicas de la lógica modal para reflexionar en torno al problema de la existencia de Dios. En la primera parte se presenta la estructura general de la lógica modal,su simbología y los diversos sistemas que recientemente han sido propuestos. En la segunda parte, el A. sugiere la posibilidad de formular en términos modales la prueba ontológica de San Anselmo. El texto culmina extrayendo algunas consecuencias de esta formulación.